FlyingWhen Siege Dragon enters, destroy all Walls your opponents control.Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.
Whenever you draw a card, put a +1/+1 counter on Chasm Skulker.When Chasm Skulker dies, create X 1/1 blue Squid creature tokens with islandwalk, where X is the number of +1/+1 counters on Chasm Skulker. (They can't be blocked as long as defending player controls an Island.)
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Exile target attacking or blocking creature.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)FlyingSeraph of the Masses's power and toughness are each equal to the number of creatures you control.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)